<?php
  include("include/header.inc");
  include("include/show_teacher/top_links.inc");
  if (isset($_SESSION['valid_login'])) {
    include("include/show_teacher/show_teacher.inc");
  }
  else {
    echo "Plesae <a href=\"frontpage.php\">log in</a>!";
  }
  include("include/footer.inc");
?>
